Universal measuring device 50/60Hz L - N: 50 - 300V, L - L: 90 - 520V, 45 - 65Hz Supply voltage: 50 .. 110V (45-65Hz), 50 .. 155V DC, current transformer: ../1/5A, memory: 16MB RAM, 2 digital inputs, 2 digital outputs, 1 temperature input, additional memory: 128MB Flash Interfaces: RS232, RS 485 Interface: Ethernet 10baseTIncl. web server and the following APPs:APP measurement monitor: Graphical representation of online & historical measured values APP IEC 61000-2-4 Watchdog Light PRO: Monitoring of the power quality limits according to IEC 61000-2-4Programming software GridVis Basic download: www.janitza.de/gridvis-download.htmlIncluded in delivery: Item no.: 0801505, Cross-patch cable, CAT5e, 2m, Item no. :5200008, RS485 terminating resistor 120 OhmArt.No.: 3303338 Quick start guide UMG 604 incl. safety instructions incl. software GridVis Quick start guide UMG 604